How to Correct the 8949 Form Part I after Tax Return Submitted by Turbotax

Dear All,

 

I submitted my tax return with 8949 Form to show the adjusted cost basis of stocks.  The adjusted cost basis is from the employee RSU which belongs to Category Part I (B) (Short-term transactions reported on Form(s) 1099-B showing basis wasn’t reported to the IRS)
Although the entered amounts of adjusted cost basis were corrected in "Column e" and final capital gain/loss were also correct,  I forgot to enter Code B into "Column f" and enter number "0" into "Column g" to show they are adjusted cost basis when I submitted it online with Turbotax.

I was wondering if I need to correct this under this situation.  If it is necessary, how can I make the change with IRS.

Thank you so much!